Features: 1) Up-down bisection GPJ-8021 arc and horizontal types 2) Innovative inserted plates and fixing bolts are used to fix and seal FOSC, and its installation is quite simple 3) The FOSC is suitable for protecting fiber cable splices in straight-through and branching appliances 4) Can be placed in aerial, underground, wall-mounted and hole-mounted and duct-mounted appliances 5) Based on an advanced formula 6) Plastic parts are made of injection-molded, high-strength engineered plastics by digital control equipment 7) Effectively prevents products from aging caused by coldness, heat, oxygen and ultraviolet radiation 8) The strong housing and main components provide fire resistant, waterproof, and quakeproof properties while protecting splices during pulling, torsioning and impacting 9) Ensures long-term reliability and usage under ambient temperature from -40 to 60° 10) Advanced internal structure design without fiber attenuation 11) Fiber optic splice tray (FOST) are designed in slide-in-lock and its opening angle is above 90 degrees 12) The curved diameter meets the international standards 13) Easy and fast to increase and reduce FOST and to fix fiber cable 14) Innovative elastic integrated seal fitting 15) The housing of FOSC is especially spacious. While straight-through fiber cable is for branching appliances, non-cut-off fibers are for straight-through after being fixed and winded. Cut-off fibers are for branching after fusion splicing with fibers of other branching fiber cables 16) Easy and convenient for installation, maintenance and reuse 17) The earthing deriving device can be installed on the housing of FOSC for deriving metallic parts of fiber cables for earthing connection 18) Pressure testing valve can be installed, the same for pressure testing and sealing testing after injecting air 19) Outside dimensions (L x W x H): 590 x 320 x 215mm 20) Consists of two sets of elastic integrated seal fitting with 8 inlet / outlet ports per set 21) Diameter of 4 ports: 41mm 22) Diameter of other 4 ports: 20mm 23) For the other sets of seal fitting, diameter of 4 ports is 26mm, diameter of other 4 ports is 20mm 24) One set of elastic integrated seal fitting can be selected according to actual installation requirements 25) The inlet / outlet ports can be set according to quantity and diameters of fiber cables to be actually installed, then the corresponding port plugs should be taken out. Maximum 8 pieces of fiber cables can be inserted 26) The installation accessories provided with the FOSC: seal tape, insulation tape, 3 pieces of special wrenches, hanging hook, abrasive cloth, earthing wire, nylon tie, labeling paper and measuring paper 27) Accessories for customers\'\' selections: earthing deriving device, pressure testing valve and buffer tube 28) Innovative design GPJ-8021 is an arc and horiztontal type with one hinge in one side and open in another side 29) Two pieces of insert plates and fixing bolts are used to fix and seal FOSC